Force wielder
Force wielders, sometimes written as Force-wielders, represented a puzzling sentient species of beings who exhibited a profound connection to the Force, granting them exceptional Force-sensitivity and the capability to alter their physical forms. Their deep connection to the Force led many to consider them beings akin to gods.
A family of these Force wielders, known collectively as the Ones or the Mortis gods, found refuge on the realm-world of Mortis. Some legends claimed Mortis to be the very birthplace of the Force itself. Here, they lived in seclusion. The three members of this family—the Father, the Daughter, and the Son—isolated themselves from the normal world when their combined power threatened to destabilize the galaxy. The Father maintained equilibrium between the Daughter and Son, who respectively embodied the light and dark sides of the Force. The siblings possessed immortality, but their immortality was contingent upon the Father's continued existence.
Despite the scarcity of knowledge about these powerful Force-wielding beings, the Father was convinced that the Sith sought to exploit his family's immense power for their own nefarious purposes. Furthermore, the Father believed that if the Son, who had fully succumbed to the dark side during Anakin Skywalker's mission to Mortis, were to escape Mortis, he would unleash devastation across the galaxy and even the universe.
Biology and appearance
The Force wielders were a highly intelligent and powerful species so deeply connected to the Force that they were regarded by some as gods. They possessed the ability to shapeshift and had no fixed form, capable of manifesting as any species they desired. Their origin was the planet Mortis, rumored to be where the Force originated.
History

A family of Force wielders, composed of the Father, the Son, and the Daughter, appeared in the recorded history of the Jedi Order. This family was depicted in a mural at at least one Jedi Temple.
Before the Clone Wars, the Father foresaw his impending death. Upon learning of the emergence of the Chosen One, he realized that only this individual could maintain the delicate balance between his Son, aligned with the dark side, and his Daughter, aligned with the light side. Consequently, in the second year of the Clone Wars, a transmission was dispatched using a 2,000-year-old Jedi distress code. Admiral Nils Tenant received it in the Chrelythiumn system. Subsequently, the Jedi High Council dispatched Master Obi-Wan Kenobi, Anakin Skywalker, and his apprentice, Ahsoka Tano, to investigate. Upon their arrival, they were drawn toward the enigmatic Mortis monolith, which transported them to the planet of Mortis, where they encountered the Ones. Skywalker became separated from Kenobi and Tano, who then attempted to return to their shuttle. Upon witnessing its disappearance, Tano and Kenobi encountered the Son, whom they initially mistook for a Sith. Seeking shelter, they entered a cave where Kenobi received a visitation from an apparition of his deceased master, Qui-Gon Jinn, who informed them that the Ones, like himself, believed Anakin to be the Chosen One. Tano was visited by a future version of herself, who warned her of the dangers she would face if she remained Skywalker's apprentice.

There, Skywalker met with the Father at his monastery. Skywalker was then confronted by the Son, who had taken on the form of Skywalker's late mother, Shmi. After Skywalker saw through the deception, he confronted the Father, who demonstrated his powers by handling the end of Skywalker's lightsaber. The Father then told Skywalker of his belief that the Chosen One was him. The Father then decided to test him by having the Son and Daughter kill Kenobi and Ahsoka. Skywalker then proved himself the Chosen by controlling the Son and Daughter and force them to let Kenobi and Ahsoka go. The Father then told Skywalker that he was dying and that he must replace him. However, Skywalker refused and attempted to leave Mortis.
The Son attempted to persuade Skywalker to join him, but Skywalker refused. The Son managed to board the shuttle and abduct Tano, taking her to his cathedral. There, the Son corrupted Tano, causing her to succumb to the dark side. The Son visited his father, who disapproved of his descent into darkness. In anger, the Son attacked his Father. The Daughter placed the Father in a bed to recuperate. Knowing that her brother was growing more powerful, she agreed to help the Jedi defeat her brother. The Daughter showed Kenobi an Altar where a powerful Dagger was kept. Kenobi took it.

At the Son's cathedral, Skywalker attempted to rescue his apprentice, but was forced to fight. Kenobi and the Daughter arrived and attempted to stop the Son giving in to the dark side. As Kenobi assisted Skywalker in fighting Tano, the Son and Daughter fought each other. The father sensed this and traveled to the cathedral to end their fight. Kenobi attempted to give Skywalker the dagger, but Tano took it and gave it to the son. With no further use for her, the Son ended Tano's life and attempted to kill his Father. At the last moment, the Daughter stepped between them and was killed by the Son with the dagger. The Son left in anguish and the Father mourned for his Daughter. Skywalker begged for the Father's help in saving his apprentice. The Daughter allowed her father to transfer her life essence to Tano. Using Skywalker as a conduit, the Daughter was able to resurrect Tano before she died. The father urged them to leave before the Son could use their shuttle to escape.

After the Father buried his Daughter, Skywalker visited him. Skywalker offered to assist the Father in dealing with the son. Skywalker, after speaking with an apparition of Master Jinn, ventured to the Well of the Dark Side to confront the Son. However, the Son was able to convince Skywalker to join him, by showing him his future. Upon seeing these terrible visions, Skywalker abandoned Kenobi and decided to join the Son, and attempted to take the shuttle. However, Tano prevented them from escaping. The Son, knowing Kenobi would seek out the father, decided to retrieve the dagger from his sister's grave. The Father, despite the pain Skywalker caused, erased Skywalker's memories of his future visions. Skywalker and the father were joined by Kenobi and Tano at the monastery. As the Son arrived, the Father took the dagger and stabbed himself. Shaken by remorse, Son embraces and makes peace with his father, just before he was stabbed by Anakin Skywalker with his lightsaber. As the Father died, he proclaimed Skywalker as the Chosen One, but warned him to be aware of his heart. The Father then vanished and the planet disappeared.

In 1 BBY, following Sith Lord Darth Vader and his Inquisitors' discovery of a Jedi Temple on Lothal, the Mining Guild and Imperial forces under Minister Veris Hydan discovered a Painting on the Temple's wall. Hydan identified the figures as the Father, Son, and Daughter. The painting was able to open a portal to the World Between Worlds. When Rebel Lieutenant Commander Ezra Bridger attempted to open the portal with Sabine Wren's help, the painting moved in which the daughter spoke to him and opened the portal. The Daughter and Father pointed towards the portal. As they pointed to the portal, Loth-wolves at the base of the painting moved to guide to the portal opening. Ezra used the portal to enter and while there he saved Tano from being killed by Darth Vader by pulling her into the World Between Worlds. The Sith Emperor Darth Sidious tried to enter World Between Worlds, but fails. Ezra returns and exits the portal to Lothal while Tano moves in another direction. Ezra then sealed the portal using the figure of the son to do so. The painting moved in which the Son spoke to him and closed the portal. The Father's hand moved away from the portal, the Son's right fist on his left hand while looking at the Father. The figures of all three begin moving down and the temple begins to collapse. The Loth-wolves move back to the painting and the Father claps his hands and the temple collapses completely.